@olenbr:Welcome to the Win-RAID Forum!The Win10 in-box 32/64bit MS NVMe drivers cannot be used externally (e.g. while installing or running any other Windows OS), because a) their INF files do not contain the HardwareIDs of the supported NVMe Controllers (reason: they are generic and not specific drivers) andb) they neither need nor have a digital signature, that means no *.CAT file is associated (reason: they are part of the OS and natively trustworthy).

Although I seriously doubt, that a mod+signed generic MS in-box NVMe driver will work with any other Windows Operating System, I have composed such mod+signed MS NVMe drivers in July 2017. So you can find out yourself, whether my doubts were reasonable or not.Both driver variants (32/64bit) are attached.

@Fernando,Thanks. I have done a comparative ANVIL bench on the same platform. Performance goes down significantly. (about 10%).I ignore if it is only the new Intel NVMe driver impact or the combination of the new driver and the recent (January Cumulative Update) Spectre/Meltdown "patched" W10 RS3 64 bit ?Intel NVMe v4.0.0.1005:

@Fernando,Thanks. I have done a comparative ANVIL bench on the same platform. Performance goes down significantly. (about 10%).I ignore if it is only the new Intel NVMe driver impact or the combination of the new driver and the recent (January Cumulative Update) Spectre/Meltdown "patched" W10 RS3 64 bit ?Intel NVMe v4.0.0.1005:[[File:i750_SSD_ANVIL_v4.0.0.1005_23jan18.PNG|none|auto]]

I think the Intel v4.0 branch does offer potential similar performance as v3.2 branch, and the loss of performance should be coming from W10 himself because a comparative test using the W10 native NVMe driver November 2017 and native NVMe driver January 2018 get the 10% loss.I do observe the MS NVMe driver has been changed from last November 2107 and January 2018.The impact of W10 'patched' (about 10% lost) is measured as this:Native W10 NVMe driver November 2017:Native W10 NVMe driver January 2018

These are my conclusions:1. The MS Win10 in-box NVMe driver gave my Intel 750 SSD the by far best WRITE scores, the worst READ scores and the best OVERALL performance.2. In camparison to the previously released Intel NVMe drivers v3.1.0.1021 and v3.2.01002 the latest v4.0.0.1005 gave me slightly better READ, WRITE and OVERALL scores.

Only users with an AMD chipset system like you can compare them both.Since AMD doesn't update/optimize their AHCI and RAID drivers very often, I suspect, that the Win10 in-box generic AHCI driver will be the better choice.

@Fernando,About your Post 968#: Does your Z170 machine for the i750 NVMe device benchmarks tests was 100% not vulnerable to Spectre/Meltdown according to the 4 Tools currently available [SpecuCheck, InSpectre, MitigationStatus and SpectreMeltdownCheck (AShampoo)] ?

@100PIER:I only ran the InSpectre tool until now, because I decided to wait anyway until ASRock releases for my mainboard an updated BIOS, which really solves the Spectre issue without initiating new problems.This is what InSpectre found:

Great work modding the intel NVMe drivers. I was wondering if it might be worth adding the Device IDs of the small Optane "cache" drives? Even on platforms that do not support the caching feature many people are just using these as "normal" SSDs, I actually have one as a scratch drive in my Ryzen system! The write performance is not great but maybe using the intel driver could improve read speeds a bit? Just an idea...